Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars. | 
	
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			That used the veeeery common 4 bladed,17-5/8" dia. fan. 
		
		
		
		
		
		
		
		
	
	Original part # was 3927791,used as the base fan from 1969 well into 1972 on nearly every GM vehicle.  | 
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